2 Pack Compatible HP HP 88 , HP 88 XL , HP 88XL , HP88 , HP88 XL , HP88XL 2 Black for use with HP OfficeJet Pro K-5400, K-5400-dn, K-5400-dtn, K-550, K-550-dtn, K-8600, K-8600-dn, L-7480, L-7500, L-7550, L-7555, L-7580, L-7590, L-7600, L-7650, L-7680, L-7700, L-7750, L-7780. Ink Cartridges for inkjet printers. &copy; Blake Printing Supply